Mozilla sent Firefox Version 57.0 to the release channel today. The update includes four (4) security updates, 1 Critical, 1 High, 1 Moderate and 1 Low. Update: Firefox ESR version 52.5 has been released.
With this release, "legacy" add-ons (XUL-based) will no longer function. This update changes the add-ons system to the WebExtensions API. The Mozilla Add-ons portal will list only WebExtensions-compatible add-ons by default. Legacy Extensions are listed separately located under Tools > Add-ons. From there click "Find a Replacement"and check the three pages of available extensions.
In addition, this update introduces the new Quantum engine (Firefox Quantum) which is replacing parts of parts of the familiar old Gecko engine.
Security Updates
- Critical Vulnerability: Can be used to run attacker code and install software, requiring no user interaction beyond normal browsing.
- High Vulnerability: Can be used to gather sensitive data from sites in other windows or inject data or code into those sites, requiring no more than normal browsing actions.
- Moderate: Vulnerabilities that would otherwise be High or Critical except they only work in uncommon non-default configurations or require the user to perform complicated and/or unlikely steps.
- Low: Minor security vulnerabilities such as Denial of Service attacks, minor data leaks, or spoofs. (Undetectable spoofs of SSL indicia would have "High" impact because those are generally used to steal sensitive data intended for other sites.)
New
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A completely new browsing engine, designed to take full advantage of the processing power in modern devices
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A redesigned interface with a clean, modern appearance, consistent visual elements, and optimizations for touch screens
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A unified address and search bar. New installs will see this unified bar. Learn how to add the stand-alone search bar to the toolbar
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A revamped new tab page that includes top visited sites, recently
visited pages, and recommendations from Pocket (in the US, Canada, and
Germany)
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An updated product tour to orient new and returning Firefox users
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AMD VP9 hardware video decoder support for improved video playback with lower power consumption
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An expanded section in preferences to manage all website permissions
Changed
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Firefox now exclusively supports extensions built using the
WebExtension API, and unsupported legacy extensions will no longer work.
Learn more about our efforts to improve the performance and security of extensions
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The browser's autoscroll feature, as well as scrolling by
keyboard input and touch-dragging of scrollbars, now use asynchronous
scrolling. These scrolling methods are now similar to other input
methods like mousewheel, and provide a smoother scrolling experience
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The content process now has a stricter security sandbox that blocks filesystem reading and writing on Linux, similar to the protections for Windows and macOS that shipped in Firefox 56
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Middle mouse paste in the content area no longer navigates to URLs by default on Unix systems
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Removed the toolbar Share button. If you relied on this feature, you can install the Share Backported extension instead.
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Some older versions of the ATOK IME, including ATOK 2006, 2008,
2009 and 2010, can cause crashes and are therefore disabled on the
Windows 64-bit version of Firefox Quantum. To fix those incompatibility
issues, please use a newer version of ATOK or one of other IMEs.
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The default font for Japanese text is now Meiryo
To get the update now, select "Help" from the Firefox menu, then pick "About Firefox." Mac users need to select "About Firefox" from the Firefox menu. If you do not use the English language version, Fully Localized Versions are available for download.
References
- Common questions after updating Firefox
- Security Updates
- Mozilla Firefox Release Notes
- Bug Fixes
- Rapid Release Calendar
Remember - "A day without laughter is a day wasted."
May the wind sing to you and the sun rise in your heart...
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